Workman will miss his Friday start in Oakland and will be available to return on Tuesday. Manager John Farrell said the team would announce a Friday starter on Thursday, but indicated Doubront was a strong candidate.

That Doubront, who has been on the disabled list since May 21 with a left shoulder strain, is traveling with the team is a good indication he'll be making the start.

Doubront has made three rehab starts between Double-A Portland and Triple-A Pawtucket and has been on the same pitching schedule as Workman in the event of a suspension.

"Feel good. I’m ready to come back and to be here," said Doubront.

In his three rehab starts, Doubront has a 2.63 ERA (4 ER/13.2 IP), five walks and 15 strikeouts.

"Time off get me more power in my arm," said Doubront of the three weeks down. "More concentration, more focus, more power. I worked my days off the shoulder and back and conditioning and getting strong to come back."

The Red Sox will have some interesting decisions over the next few days. Assuming Doubront makes the Friday start, it leaves Workman's job in limbo for the time being. Farrell has said on several occasions that Workman has earned a spot in the rotation.

In his five starts since joining the rotation, Workman has a 3.21 ERA, 21 strikeouts and 11 walks in 28 innings.

Meanwhile, Rubby De La Rosa has been pitching in Clay Buchholz's spot in the rotation. Buchholz is set to make his second rehab start for Pawtucket on Thursday.